<template>
  <div style="padding: 10px">
<!--    功能区域-->
    <div style="margin: 10px 0">
      <el-button type="primary" @click="add">新增</el-button>
      <!--<el-button type="primary">导入</el-button>
      <el-button type="primary">导出</el-button>-->
    </div>

<!--    搜索区域-->
    <div style="margin: 10px 0">
      <el-input v-model="search" placeholder="请输入关键字" style="width: 20%" clearable></el-input>
      <el-button type="primary" style="margin-left: 5px" @click="load">查询</el-button>
    </div>
    <el-table :data="tableData" stripe border style="width: 100%">
      <!--strip：加斑马纹
      sortable：加上排序-->
      <el-table-column prop="id" label="ID" sortable />
      <el-table-column prop="username" label="用户名" />
      <el-table-column prop="nickName" label="昵称" />
      <el-table-column prop="age" label="年龄" />
      <el-table-column prop="sex" label="性别" />
      <el-table-column prop="address" label="地址" />
      <el-table-column label="角色">
          <template #default="scope">
              <scan v-if="scope.row.role ===1">管理员</scan>
              <scan v-if="scope.row.role ===2">普通用户</scan>
          </template>
      </el-table-column>
      <el-table-column fixed="right" label="操作" width="260" align="center">
        <template #default="scope">
<!--            <el-button @click="showBooks(scope.row.bookList)">查看书籍列表</el-button>-->
          <el-button size="mini" type="primary" @click="handleEdit(scope.row)">编辑</el-button>
          <el-popconfirm title="确认删除吗？" @confirm="handleDelete(scope.row.id)">
            <template #reference>
              <el-button size="mini" type="danger">删除</el-button>
            </template>
          </el-popconfirm>
        </template>
      </el-table-column>
    </el-table>

    <div style="margin: 10px 0">
      <el-pagination
              v-model:currentPage="currentPage"
              v-model:page-size="pageSize"
              :page-sizes="[5,10,20]"
              :small="small"
              :disabled="disabled"
              :background="background"
              layout="total, sizes, prev, pager, next, jumper"
              :total="total"
              @size-change="handleSizeChange"
              @current-change="handleCurrentChange"/>

        <el-dialog title="用户拥有的图书列表" v-model="bookVis" width="30%">
            <el-table :data="bookList" stripe border>
                <el-table-column prop="id" label="ID"></el-table-column>
                <el-table-column prop="name" label="名称"></el-table-column>
                <el-table-column prop="price" label="价格"></el-table-column>
            </el-table>
        </el-dialog>

        <el-dialog v-model="dialogVisible" title="新增用户" width="30%">
            <el-form :model="form" label-width="120px" style="width: 80%">
                <el-form-item label="用户名">
                    <el-input v-model="form.username" />
                </el-form-item>
                <el-form-item label="昵称">
                    <el-input v-model="form.nickName" />
                </el-form-item>
                <el-form-item label="年龄">
                    <el-input v-model="form.age" />
                </el-form-item>
                <el-form-item label="性别">
                    <el-radio v-model="form.sex" label="男" size="large">男</el-radio>
                    <el-radio v-model="form.sex" label="女" size="large">女</el-radio>
                    <el-radio v-model="form.sex" label="未知" size="large">未知</el-radio>
                </el-form-item>
                <el-form-item label="地址">
                    <el-input type="textarea" v-model="form.address" />
                </el-form-item>
            </el-form>
            <template #footer>
              <span class="dialog-footer">
                <el-button @click="dialogVisible = false">取消</el-button>
                <el-button type="primary" @click="save">确定</el-button>
              </span>
            </template>
        </el-dialog>
    </div>
  </div>
</template>

<script>

import request from "../utils/request";

export default {
  name: 'User',
  components: {

  },
  data() {
    return {
        form:{},
        dialogVisible: false,
      search: '',
      currentPage: 1,
      pageSize: 10,
      total: 0,
      tableData:[],
        bookVis:false,
        bookList:[]
    }
  },
    created() {
        let userStr1 = sessionStorage.getItem("user"||"{}")
        console.log("userStr1:"+userStr1)
        if (userStr1 === null || userStr1 === ''){
            console.log("无用户登录不进行查询")
            this.$router.push("/login")
        } else {
            console.log("查询时有用户")
            this.load()
        }
    },
    methods: {
        showBooks(books){
          this.bookList = books;
          this.bookVis = true;
        },
      load() {
        request.get("/user",{
            params: {
                pageNum: this.currentPage,
                pageSize: this.pageSize,
                search: this.search
            }
        }).then(res => {
            console.log(res)
            this.tableData = res.data.records
            this.total = res.data.total
        })
      },
      add() {
          this.dialogVisible = true
          this.form = {}
      },
      save() {
          if (this.form.id) {
              //如果有id，更新
              request.put("/user", this.form).then(res => {
                  console.log(res)
                  if (res.code === '0'){
                      this.$message({
                          type: "success",
                          message: "修改成功"
                      })
                  } else {
                      this.$message({
                          type: "error",
                          message: res.msg
                      })
                  }
                  this.load() //刷新
                  this.dialogVisible = false //关闭弹窗
                  })
          } else {
              //新增
              request.post("/user", this.form).then(res => {
                  console.log(res)
                  if (res.code === '0'){
                      this.$message({
                          type: "success",
                          message: "新增成功"
                      })
                  } else {
                      this.$message({
                          type: "error",
                          message: res.msg
                      })
                  }
                  this.load() //刷新
                  this.dialogVisible = false //关闭弹窗
                  })
          }
      },

    handleEdit(row) {
        this.form = JSON.parse(JSON.stringify(row))
        this.dialogVisible = true
    },
    handleDelete(id) {
        console.log(id)
        request.delete("/user/" + id).then(res => {
            if (res.code === '0'){
                this.$message({
                    type: "success",
                    message: "删除成功"
                })
            } else {
                this.$message({
                    type: "error",
                    message: res.msg
                })
            }
            this.load() //刷新,删除之后重新加载表格的数据
        })
    },
    handleSizeChange(pageSize){   //改变当前每页的个数时触发、
        this.pageSize = pageSize
          this.load()
    },
    handleCurrentChange(pageNum){  //改变当前页码时触发
        this.pageNum = pageNum
          this.load()
    },
  }
}
</script>
